I wouldn't be happy doing that, I would always want to visit the place and have a good look round it in the flesh, as it were. There could always be something wrong with it that isn't apparent from a remote viewing. Like a nasty smell or a neighbour who plays loud music at 2 am.
Then again, do you find out everything you need from a physical viewing? The average viewing is only 20 minutes, and often less than that. If the place has been thoroughly redecorated and refurbished, there could be something seriously wrong with it that you don't notice because its been hidden.
So in practice a physical viewing isn't much better than a remote viewing. Of course you can get a surveyor's report that will tell you if it's structurally sound, but that still won't tell you about the nasty smell or the noisy neighbour.
Jenny and I spent about 20 minutes looking round this house, which looked fine but the surveyor's report told us a lot of things we were unaware of (nothing too serious thankfully - nothing to stop us buying the house).
I've read a few times about people buying a property after seeing it online, only to find that the house or flat doesn't exist or it's owned by someone else and not the seller. But that seems to be very rare.
Call me old-fashioned but if I'm thinking of buying a house, I want to have a look at the actual thing, not some online sample.